1. 排除：obtrude#闯入 | obviate#排除 | originate#发起

2. 避免：impervious 不能透过的 | obviate 避免 | obvious 明显的

3. 除去,排除：decision n判断 | obviate 除去,排除 | terminal n. a终端机,终端的

4. 避免/排除,偏离：obsequious 谄媚的, | obviate 避免/排除,偏离 | obligated 合法联系 在一起

1. 消除；排除；使成为不必要
    To obviate something such as a problem or a need means to remove it or make it unnecessary.

obviate的意思

    e.g. The use of a solicitor trained as a mediator would obviate the need for independent legal advice...
           聘请受过调解人培训的事务律师就免去了单独寻求法律咨询的必要。
    e.g. This deferral would obviate pressure on the rouble exchange rate.
           这一延期将消除卢布汇率面临的压力。

1. prevent the occurrence of
    prevent from happening

    e.g. Let''s avoid a confrontation
           head off a confrontation
           avert a strike

    Synonym: debarforefendforfenddeflectaverthead offstave offfend offavoidward off

2. do away with

    Synonym: rid ofeliminate